Primary battery.



R. V. HEUSER.

PRIMARY BATTERY.

A PPLICATION FILED M1125, 1911.

1,015,735. 4 Patented M123, 1912.

III III.....v

- UNITED STATES" PATENT onrrcn. f

RALPH V. HEUSER, OF WATERBURY, CONNECTICUT, ASSIGNOB T0 ROESSLEB @c HASS- LACHEB CHEMICAL C0., OF PERTH AMBOY, NEW JERSEY, A CORPORATION OF NEW roam Speoication of Letters I'atent. Application illed April 25, 15711. Serial No. 828,189.

Patented Jan. 23, 19.12.'

YTo all whom it may concern:

and State of Connecticut, have invented certain new .and useful Improvements 1n Primary Batterles, of which the following is a specification.

This invention relates to primary batteries and particularly a form of cell mi which sodium amalgam 1s used as an essen-j tial element and to form the positive electrode.

' The objects of my invention are to produce an improved form lof'sodlum amalgam battery that will be highly eifectlve comparatively simple in l very desirable for-some classes of work by reason of its compact form; to providev a cell that may be used as either a wet or dry cell. The battery is further constructed so that the same can be easily taken apart and reassembled as for renewing the element-s when occasion requires.

With the above and other minor objects in view my invention resides and consists in the simple and novel constructionff'battery shown upon the accompanying sheet of drawings forming a part of this specilication, upon which similar characters of reference denote like or corresponding parts throughout the several figures, an of which,

Figure 1, shows a central vertical longitudinal section through ymy novel form of sodium amalgam cell complete and, Fig. 2, is a horizontal cross section of the battery cell shown in Fig. 1 andtaken on line 2-2 of that figure. f

Upon the drawings 5 indicates a pan having cross ribs 6 in its bottom portion to form a rest for a battery jar 7 made of metal seated therein. A cover 8 surrounds the jar and serves to inclose the an 5 which is normally filled with water w en the cell is workin The lower part of the jar 7 is perforate to admit water from the pan, and used for the purposeof wetting the copper oxid depolarizer 9 contained within the lower part of the jar. Above this layer of copper oxid I provide a thin insulating iilm of hydraulic cement 10, carbonate of lime or a diaphragm of an organic origin such as unsized paper or cloth and together with a rubber ring 11 serve to insulate the negativel construction and.

metalelectrode containin the copper oxid from the positive electro e arranged above and formed of sodium amalgam.

The metal, sodium amalgam is represented .by the numeral 12 andas shown 1s placed upon the insulator 10 and within the lowerpart of the c lindrical porcelain lining 13 contained wit in the jar. A metal plate 14 is secured upon the sodium amalgam and 1 to it is fastened a post 15. A pair of 'specialf shaped shells 16-16 are placed one upon another to form an annular pocket intermediate thereof and the porcelain13.l This pocket is filled with av cotton packing 17 which together with the shells pack the sodium amalgam in the orcelain cylinder. Upon this packing is laid) a grooved ring 18 intermediate of which, and the cover 19, is-

placed 'a compressed spring 20 that bears down upon the ring and packs the sodium amalgam to hold the same in place, that is, with its lower face in good contact with the diaphragm. yThe cover: is secured to the flange of the jar by means of short screw bolts 21, one of which may be provided with an 'extra' nut and ein loy'ed as one ofthe terminals 22 of the battery. The second terminal 23 is located central of the cover and `is properly insulated therefrom. A short wire 24 connects this terminal 23 with the post 15 thus forming a connection with the positive or sodium amalgam sideof the cell, while the binding post obviously connects with the metal jar itself in which the copper oxid is placed representing the negative pole of the battery.

Having thus described my invention what I claim and desire to secure by Letters Patent is f 1. In a battery of the class described the combination witha metallic jar representing .amalgam within the jar, copper oxid also contalned Within the said jar, an insulation' between the sodium amalgamv and copper oxid, and terminals for the sodium amalgam electrode and the metal electrode containing' the copper oxid.

4. In a battery of the class described, the combination of a jar, a iilling of copper oxid within the jar, a coverin of insulating material thereover, a la er o sodium amalam contained therein ut insulated thererom, a s ring to compress the sodium amalgam 1n p ace, and terminals connected with the sodium'amalgamelectrode and the metal I. electrode containing the copper oxid. l

5. In a batter of the' class described, the combination wit a jar, a fillin of copper oxid Within the jar, a covering o insulatingj material therefor, a layer of sodium -amalgam also contained therein, an insulating .cylinderwithin the jar andv surrounding the sodium amalgam, a plate covering the sodium amalgam, and a spring bearing upont the plate in contact with the sodium.

6. In a battery of the class described, the combination of a jar, a iilling. of copperl oxid within the jar, a covering of insulating sodium amalgam, a plate uponY the sodium Y amalgam, a ost secured to the plate, a terminal ins atively attached to the cover, an electrical connection between the post and terminal, and a second terminal for the copper oxid side of the battery.

8. In a battery of the class described, the combination of a jar, a filling of copper voxid within the jar, a covering of insulating material thereon, a layer of sodium amalgam, a plate upon the sodium amalgam, a packing above the plate, a ring u on the packing, a spring intermediate of t e ring and cover to press the plate against the sodium amalgam.

Signed'at Waterbury in.the county of New Haven and State of Connecticut this 18th day of April A. D., 1911. 1

RALPH V. HEUSER.

Witnesses:

MICHAEL V; BLANsrmLD, GEORGE A. STORES. 

